PT-2024-11433 · Linux+2 · Linux Kernel+2

Nuno Sá · Published 2021-09-20 · Updated 2025-01-10 · CVE-2021-47437

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A deadlock issue was introduced in the Linux kernel with commit 39c024b51b560, which improved sync scale mode handling for iio: adis16475. Two deadlocks were introduced: the call to adis write reg 16() was not changed to its unlocked version, and the lock was not being released on the success path of the function. This change fixes both issues.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Locking

Weakness Enumeration

CWE-667

Related Identifiers

BDU:2025-14229

CVE-2021-47437

OPENSUSE-SU-2024_2189-1

SUSE-SU-2024:2008-1

SUSE-SU-2024:2011-1

SUSE-SU-2024:2019-1

SUSE-SU-2024:2189-1

SUSE-SU-2024:2190-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 1245

• https://osv.dev/vulnerability/SUSE-SU-2024:2019-1 · Vendor Advisory
• https://git.kernel.org/stable/c/04e03b907022ebd876f422f17efcc2c6cc934dc6 · Patch
• https://cve.org/CVERecord?id=CVE-2021-47437 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:2190-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47437 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47437 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2008-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47437 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47437 · Security Note
• https://osv.dev/vulnerability/CVE-2021-47437 · Vendor Advisory
• https://git.kernel.org/stable/c/9da1b86865ab4376408c58cd9fec332c8bdb5c73 · Patch
• https://bdu.fstec.ru/vul/2025-14229 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:2189-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2011-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47437 · Vendor Advisory